'In Groundbreaking Decision, Feds Say Hacking DRM to Fix Your Electronics Is Legal'
"This decision by the Copyright Office will make it legal to bypass that software lock, but actually doing it is another matter altogether... The thing is—as DRM becomes legal to crack, companies are committed to making it much harder to do so."
Sounds like, with this decision, DRM cracking is less of a legal issue, but will remain a technical issue and maybe become a sort of arms race
https://motherboard.vice.com/en_us/article/xw9bwd/1201-exemptions-right-to-repair